Athanasius was born in Alexandria. He assisted Bishop Alexander at the Council of Nicaea, and later succeeded him as bishop. He fought hard against Arianism all his life, undergoing many sufferings and spending a total of 17 years in exile. He wrote outstanding works to explain and defend orthodoxy.

The matters in dispute with the Arians were vital to the very nature of Christianity; and, as Cardinal Newman put it, the trouble was that at that time the laity tended to be champions of orthodoxy while their bishops (seduced by closeness to imperial power) tended not to be. The further trouble (adds Chadwick) is that the whole thing became tangled up with matters of power, organization and authority, and with cultural differences between East and West. Athanasius was accused of treason and murder, embezzlement and sacrilege. In the fight against him, any weapon would do.

Arianism taught that the Son was created by the Father and in no way equal to him. This was in many ways a “purer” and more “spiritual” approach to religion, since it did not force God to undergo the undignified experience of being made of meat. Islam is essentially Arian. But Arianism leaves an infinite gap between God and man, and ultimately destroys the Gospel, leaving it either as a fake or as a cruel parody. Only by being orthodox and insisting on the identity of the natures of the Father and the Son and the Spirit can we truly understand the goodness of creation and the love of God, and live according to them. For this reason many extracts from the works of St Athanasius have been adopted as Second Readings in the Office of Readings.

Liturgical colour: green

The theological virtue of hope is symbolized by the colour green, just as the burning fire of love is symbolized by red. Green is the colour of growing things, and hope, like them, is always new and always fresh. Liturgically, green is the colour of Ordinary Time, the season in which we are being neither especially penitent (in purple) nor overwhelmingly joyful (in white).

My brothers, you were called, as you know, to liberty; but be careful, or this liberty will provide an opening for self-indulgence. Serve one another, rather, in works of love, since the whole of the Law is summarised in a single command: Love your neighbour as yourself.

Let me put it like this: if you are guided by the Spirit you will be in no danger of yielding to self-indulgence, since self-indulgence is the opposite of the Spirit, the Spirit is totally against such a thing, and it is precisely because the two are so opposed that you do not always carry out your good intentions.